macOS 12.3+ lower render resolution?

Hi Verge,

we have noticed that latest Safari 12.3.1 is somehow rendering pictures in lower resolution, making it uglier/aliased – attached are rendeders from same scene rendered in Edge and Safari on MacOS.

– Problem seems to be Browser issue (Edge works well) and engine-independent.
– Browser is reporting same values for window.devicePixelRatio (2) for both working older version and new 12.3.1
– We have tried following workaround with setting setPixelRatio but it does not seem to have desired effect (way up to draining 3.0 is still noticably aliased)

function setScreenScale(factor) {

    appInstance.renderer.setPixelRatio(factor);

	// update also postprocessing as well if available
    if (!appInstance.useHiDPIRenderPass && isFunction(appInstance.renderer.setPixelRatio))
        appInstance.renderer.setPixelRatio(factor);

    if (appInstance.postprocessing && isFunction(appInstance.postprocessing.composer.setPixelRatio))
        appInstance.postprocessing.composer.setPixelRatio(factor);

	appInstance.onResize(); // refresh screen
}

Our customers are complaining about picture quality. Please can we report this to Apple and/or have some workaround this?

thank you very much in advance,

Petr from Precismo